A wireless network topology :- allow you to connect the building by a backbone and physical cable and then to each building containing the required cells for all its PCs and devices. Wireless network also can consist of infrared communications, similar to a remote - control TV, but this type of communication is slow and requires a direct line of sight-as well as close proximity -for the communication to work. Infrared mainly is used only between two systems. Infrared is not used often as a complete networking solution and should not be considered ever as an option for a whole network; it is useful between laptop or a laptop and a printer.
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